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En el instante 25 de junio de 2026, 12:41:59 UTC,
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Modificado el valor del campo
modified
a2026-06-25
en Monitoring the expansion of alien species along roads with remote sensing. -
Modificado el valor del campo
modified
del recurso Acceso al recurso a2026-06-25
(anteriormente2026-06-23
) en Monitoring the expansion of alien species along roads with remote sensing.
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| 81 | "name": "24868425-f98a-5d40-8677-94e0d742784f", | 95 | "name": "24868425-f98a-5d40-8677-94e0d742784f", | ||
| 82 | "notes": "Invasive species are one of the most important threats to | 96 | "notes": "Invasive species are one of the most important threats to | ||
| 83 | biodiversity and ecosystems. Monitoring invasion status is necessary | 97 | biodiversity and ecosystems. Monitoring invasion status is necessary | ||
| 84 | for the implementation of mitigation measures and conserving | 98 | for the implementation of mitigation measures and conserving | ||
| 85 | biodiversity. Remote Sensing (RS) is the best Earth Observation tool | 99 | biodiversity. Remote Sensing (RS) is the best Earth Observation tool | ||
| 86 | for monitoring biodiversity as it provides data at several spatial and | 100 | for monitoring biodiversity as it provides data at several spatial and | ||
| 87 | temporal resolutions. We used RS data and techniques to monitor the | 101 | temporal resolutions. We used RS data and techniques to monitor the | ||
| 88 | expansion along roadsides of five invasive tree species and giant reed | 102 | expansion along roadsides of five invasive tree species and giant reed | ||
| 89 | (Acacia dealbata, A. melanoxylon, Robinia pseudoacacia, Ailanthus | 103 | (Acacia dealbata, A. melanoxylon, Robinia pseudoacacia, Ailanthus | ||
| 90 | altissima, and Arundo donax). We hypothesise that roadsides are the | 104 | altissima, and Arundo donax). We hypothesise that roadsides are the | ||
| 91 | main path of expansion for invasive species in Mediterranean | 105 | main path of expansion for invasive species in Mediterranean | ||
| 92 | landscape, and that the expansion is human mediated, as lands along | 106 | landscape, and that the expansion is human mediated, as lands along | ||
| 93 | roads have a strong agricultural management. The study area was | 107 | roads have a strong agricultural management. The study area was | ||
| 94 | located in the intervention area of the project Life LINES, one of the | 108 | located in the intervention area of the project Life LINES, one of the | ||
| 95 | main transport routes between Portugal and Spain. We used aerial | 109 | main transport routes between Portugal and Spain. We used aerial | ||
| 96 | photographs from three different periods: 1995, 2010, and 2016. The | 110 | photographs from three different periods: 1995, 2010, and 2016. The | ||
| 97 | 2016 set had a spatial resolution of 0.1 m, and Red-Blue-Green (RGB) | 111 | 2016 set had a spatial resolution of 0.1 m, and Red-Blue-Green (RGB) | ||
| 98 | and infrared bands. The 2010 and 1995 sets had a spatial resolution | 112 | and infrared bands. The 2010 and 1995 sets had a spatial resolution | ||
| 99 | respectively of 0.5 m and 1 m and RGB bands. We obtained training data | 113 | respectively of 0.5 m and 1 m and RGB bands. We obtained training data | ||
| 100 | for each invasive and native species with a real-time kinematic GPS | 114 | for each invasive and native species with a real-time kinematic GPS | ||
| 101 | receiver. The aerial photographies were segmented using the | 115 | receiver. The aerial photographies were segmented using the | ||
| 102 | multi-resolution algorithm and an object-oriented classification | 116 | multi-resolution algorithm and an object-oriented classification | ||
| 103 | (Nearest Neighbour classifier) in eCognition Developer software. The | 117 | (Nearest Neighbour classifier) in eCognition Developer software. The | ||
| 104 | photographies were posteriorly classified through a sequential | 118 | photographies were posteriorly classified through a sequential | ||
| 105 | process. We did a first classification to exclude all the | 119 | process. We did a first classification to exclude all the | ||
| 106 | non-vegetation objects (e.g. roads). Then, we did a second | 120 | non-vegetation objects (e.g. roads). Then, we did a second | ||
| 107 | classification to classify the five invasive species and other plant | 121 | classification to classify the five invasive species and other plant | ||
| 108 | species. We assessed classification accuracy with the overall accuracy | 122 | species. We assessed classification accuracy with the overall accuracy | ||
| 109 | and Kappa index metrics. Invasive species expanded in the study area | 123 | and Kappa index metrics. Invasive species expanded in the study area | ||
| 110 | between 1995 and 2016 along the roads, mainly close to anthropic | 124 | between 1995 and 2016 along the roads, mainly close to anthropic | ||
| 111 | areas. In the last 6 years (2010-2016), A. donax expanded more than | 125 | areas. In the last 6 years (2010-2016), A. donax expanded more than | ||
| 112 | the other invasive species. In some cases, the invaded area duplicated | 126 | the other invasive species. In some cases, the invaded area duplicated | ||
| 113 | between 1995 and 2016. During this period, human management hampered | 127 | between 1995 and 2016. During this period, human management hampered | ||
| 114 | the expansion of invasive species by cutting down individuals. Remote | 128 | the expansion of invasive species by cutting down individuals. Remote | ||
| 115 | Sensing proved to be an efficient tool to measure expansion of | 129 | Sensing proved to be an efficient tool to measure expansion of | ||
| 116 | invasive species along roadsides with an easy and replicable method. | 130 | invasive species along roadsides with an easy and replicable method. | ||
| 117 | Our results are essential to plan the management of roadsides.", | 131 | Our results are essential to plan the management of roadsides.", | ||
| 118 | "notes_translated": { | 132 | "notes_translated": { | ||
| 119 | "en": "Invasive species are one of the most important threats to | 133 | "en": "Invasive species are one of the most important threats to | ||
| 120 | biodiversity and ecosystems. Monitoring invasion status is necessary | 134 | biodiversity and ecosystems. Monitoring invasion status is necessary | ||
| 121 | for the implementation of mitigation measures and conserving | 135 | for the implementation of mitigation measures and conserving | ||
| 122 | biodiversity. Remote Sensing (RS) is the best Earth Observation tool | 136 | biodiversity. Remote Sensing (RS) is the best Earth Observation tool | ||
| 123 | for monitoring biodiversity as it provides data at several spatial and | 137 | for monitoring biodiversity as it provides data at several spatial and | ||
| 124 | temporal resolutions. We used RS data and techniques to monitor the | 138 | temporal resolutions. We used RS data and techniques to monitor the | ||
| 125 | expansion along roadsides of five invasive tree species and giant reed | 139 | expansion along roadsides of five invasive tree species and giant reed | ||
| 126 | (Acacia dealbata, A. melanoxylon, Robinia pseudoacacia, Ailanthus | 140 | (Acacia dealbata, A. melanoxylon, Robinia pseudoacacia, Ailanthus | ||
| 127 | altissima, and Arundo donax). We hypothesise that roadsides are the | 141 | altissima, and Arundo donax). We hypothesise that roadsides are the | ||
| 128 | main path of expansion for invasive species in Mediterranean | 142 | main path of expansion for invasive species in Mediterranean | ||
| 129 | landscape, and that the expansion is human mediated, as lands along | 143 | landscape, and that the expansion is human mediated, as lands along | ||
| 130 | roads have a strong agricultural management. The study area was | 144 | roads have a strong agricultural management. The study area was | ||
| 131 | located in the intervention area of the project Life LINES, one of the | 145 | located in the intervention area of the project Life LINES, one of the | ||
| 132 | main transport routes between Portugal and Spain. We used aerial | 146 | main transport routes between Portugal and Spain. We used aerial | ||
| 133 | photographs from three different periods: 1995, 2010, and 2016. The | 147 | photographs from three different periods: 1995, 2010, and 2016. The | ||
| 134 | 2016 set had a spatial resolution of 0.1 m, and Red-Blue-Green (RGB) | 148 | 2016 set had a spatial resolution of 0.1 m, and Red-Blue-Green (RGB) | ||
| 135 | and infrared bands. The 2010 and 1995 sets had a spatial resolution | 149 | and infrared bands. The 2010 and 1995 sets had a spatial resolution | ||
| 136 | respectively of 0.5 m and 1 m and RGB bands. We obtained training data | 150 | respectively of 0.5 m and 1 m and RGB bands. We obtained training data | ||
| 137 | for each invasive and native species with a real-time kinematic GPS | 151 | for each invasive and native species with a real-time kinematic GPS | ||
| 138 | receiver. The aerial photographies were segmented using the | 152 | receiver. The aerial photographies were segmented using the | ||
| 139 | multi-resolution algorithm and an object-oriented classification | 153 | multi-resolution algorithm and an object-oriented classification | ||
| 140 | (Nearest Neighbour classifier) in eCognition Developer software. The | 154 | (Nearest Neighbour classifier) in eCognition Developer software. The | ||
| 141 | photographies were posteriorly classified through a sequential | 155 | photographies were posteriorly classified through a sequential | ||
| 142 | process. We did a first classification to exclude all the | 156 | process. We did a first classification to exclude all the | ||
| 143 | non-vegetation objects (e.g. roads). Then, we did a second | 157 | non-vegetation objects (e.g. roads). Then, we did a second | ||
| 144 | classification to classify the five invasive species and other plant | 158 | classification to classify the five invasive species and other plant | ||
| 145 | species. We assessed classification accuracy with the overall accuracy | 159 | species. We assessed classification accuracy with the overall accuracy | ||
| 146 | and Kappa index metrics. Invasive species expanded in the study area | 160 | and Kappa index metrics. Invasive species expanded in the study area | ||
| 147 | between 1995 and 2016 along the roads, mainly close to anthropic | 161 | between 1995 and 2016 along the roads, mainly close to anthropic | ||
| 148 | areas. In the last 6 years (2010-2016), A. donax expanded more than | 162 | areas. In the last 6 years (2010-2016), A. donax expanded more than | ||
| 149 | the other invasive species. In some cases, the invaded area duplicated | 163 | the other invasive species. In some cases, the invaded area duplicated | ||
| 150 | between 1995 and 2016. During this period, human management hampered | 164 | between 1995 and 2016. During this period, human management hampered | ||
| 151 | the expansion of invasive species by cutting down individuals. Remote | 165 | the expansion of invasive species by cutting down individuals. Remote | ||
| 152 | Sensing proved to be an efficient tool to measure expansion of | 166 | Sensing proved to be an efficient tool to measure expansion of | ||
| 153 | invasive species along roadsides with an easy and replicable method. | 167 | invasive species along roadsides with an easy and replicable method. | ||
| 154 | Our results are essential to plan the management of roadsides.", | 168 | Our results are essential to plan the management of roadsides.", | ||
| 155 | "es": "Invasive species are one of the most important threats to | 169 | "es": "Invasive species are one of the most important threats to | ||
| 156 | biodiversity and ecosystems. Monitoring invasion status is necessary | 170 | biodiversity and ecosystems. Monitoring invasion status is necessary | ||
| 157 | for the implementation of mitigation measures and conserving | 171 | for the implementation of mitigation measures and conserving | ||
| 158 | biodiversity. Remote Sensing (RS) is the best Earth Observation tool | 172 | biodiversity. Remote Sensing (RS) is the best Earth Observation tool | ||
| 159 | for monitoring biodiversity as it provides data at several spatial and | 173 | for monitoring biodiversity as it provides data at several spatial and | ||
| 160 | temporal resolutions. We used RS data and techniques to monitor the | 174 | temporal resolutions. We used RS data and techniques to monitor the | ||
| 161 | expansion along roadsides of five invasive tree species and giant reed | 175 | expansion along roadsides of five invasive tree species and giant reed | ||
| 162 | (Acacia dealbata, A. melanoxylon, Robinia pseudoacacia, Ailanthus | 176 | (Acacia dealbata, A. melanoxylon, Robinia pseudoacacia, Ailanthus | ||
| 163 | altissima, and Arundo donax). We hypothesise that roadsides are the | 177 | altissima, and Arundo donax). We hypothesise that roadsides are the | ||
| 164 | main path of expansion for invasive species in Mediterranean | 178 | main path of expansion for invasive species in Mediterranean | ||
| 165 | landscape, and that the expansion is human mediated, as lands along | 179 | landscape, and that the expansion is human mediated, as lands along | ||
| 166 | roads have a strong agricultural management. The study area was | 180 | roads have a strong agricultural management. The study area was | ||
| 167 | located in the intervention area of the project Life LINES, one of the | 181 | located in the intervention area of the project Life LINES, one of the | ||
| 168 | main transport routes between Portugal and Spain. We used aerial | 182 | main transport routes between Portugal and Spain. We used aerial | ||
| 169 | photographs from three different periods: 1995, 2010, and 2016. The | 183 | photographs from three different periods: 1995, 2010, and 2016. The | ||
| 170 | 2016 set had a spatial resolution of 0.1 m, and Red-Blue-Green (RGB) | 184 | 2016 set had a spatial resolution of 0.1 m, and Red-Blue-Green (RGB) | ||
| 171 | and infrared bands. The 2010 and 1995 sets had a spatial resolution | 185 | and infrared bands. The 2010 and 1995 sets had a spatial resolution | ||
| 172 | respectively of 0.5 m and 1 m and RGB bands. We obtained training data | 186 | respectively of 0.5 m and 1 m and RGB bands. We obtained training data | ||
| 173 | for each invasive and native species with a real-time kinematic GPS | 187 | for each invasive and native species with a real-time kinematic GPS | ||
| 174 | receiver. The aerial photographies were segmented using the | 188 | receiver. The aerial photographies were segmented using the | ||
| 175 | multi-resolution algorithm and an object-oriented classification | 189 | multi-resolution algorithm and an object-oriented classification | ||
| 176 | (Nearest Neighbour classifier) in eCognition Developer software. The | 190 | (Nearest Neighbour classifier) in eCognition Developer software. The | ||
| 177 | photographies were posteriorly classified through a sequential | 191 | photographies were posteriorly classified through a sequential | ||
| 178 | process. We did a first classification to exclude all the | 192 | process. We did a first classification to exclude all the | ||
| 179 | non-vegetation objects (e.g. roads). Then, we did a second | 193 | non-vegetation objects (e.g. roads). Then, we did a second | ||
| 180 | classification to classify the five invasive species and other plant | 194 | classification to classify the five invasive species and other plant | ||
| 181 | species. We assessed classification accuracy with the overall accuracy | 195 | species. We assessed classification accuracy with the overall accuracy | ||
| 182 | and Kappa index metrics. Invasive species expanded in the study area | 196 | and Kappa index metrics. Invasive species expanded in the study area | ||
| 183 | between 1995 and 2016 along the roads, mainly close to anthropic | 197 | between 1995 and 2016 along the roads, mainly close to anthropic | ||
| 184 | areas. In the last 6 years (2010-2016), A. donax expanded more than | 198 | areas. In the last 6 years (2010-2016), A. donax expanded more than | ||
| 185 | the other invasive species. In some cases, the invaded area duplicated | 199 | the other invasive species. In some cases, the invaded area duplicated | ||
| 186 | between 1995 and 2016. During this period, human management hampered | 200 | between 1995 and 2016. During this period, human management hampered | ||
| 187 | the expansion of invasive species by cutting down individuals. Remote | 201 | the expansion of invasive species by cutting down individuals. Remote | ||
| 188 | Sensing proved to be an efficient tool to measure expansion of | 202 | Sensing proved to be an efficient tool to measure expansion of | ||
| 189 | invasive species along roadsides with an easy and replicable method. | 203 | invasive species along roadsides with an easy and replicable method. | ||
| 190 | Our results are essential to plan the management of roadsides." | 204 | Our results are essential to plan the management of roadsides." | ||
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